diff --git a/modules/profiles/platform/desktop/nixos.nix b/modules/profiles/platform/desktop/nixos.nix
new file mode 100644
index 0000000..e2dd78a
--- /dev/null
+++ b/modules/profiles/platform/desktop/nixos.nix
@@ -0,0 +1,6 @@
+{
+  services.displayManager = {
+    defaultSession = "labwc";
+    ly.settings.default_session = "labwc";
+  };
+}
diff --git a/modules/profiles/platform/laptop/nixos.nix b/modules/profiles/platform/laptop/nixos.nix
new file mode 100644
index 0000000..e623163
--- /dev/null
+++ b/modules/profiles/platform/laptop/nixos.nix
@@ -0,0 +1,6 @@
+{
+  services.displayManager = {
+    defaultSession = "niri";
+    ly.settings.default_session = "niri";
+  };
+}
diff --git a/modules/services/ly/nixos.nix b/modules/services/ly/nixos.nix
index 8401b2f..517f5be 100644
--- a/modules/services/ly/nixos.nix
+++ b/modules/services/ly/nixos.nix
@@ -11,7 +11,7 @@ in
   services.displayManager.ly = {
     enable = true;
     settings = {
-      default_session = "niri";
+      default_session = lib.mkDefault "niri";
       animate = true;
       animation = "dur_file";
       dur_file_path = "${indyzLinuxfire}";